J
John Larkin
Guest
On Sun, 24 Apr 2022 21:02:34 -0700 (PDT), whit3rd <whit3rd@gmail.com>
wrote:
Next-gen wireless networks will have frequency hopping, radical
constellation coding, synthetic antenna aiming, all sorts of nasty
stuff. It makes sense to digitize the antenna signal and do all the
fancy stuff digitally.
The market will be enormous. Envision hundreds of millions of little
6G boxes on telephone poles all over the world.
--
If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon
wrote:
On Sunday, April 24, 2022 at 2:52:11 PM UTC-7, Flyguy wrote:
Example: the AFE7903 does direct conversion at GHz speeds, mind boggling:
\'With operation up to 7.4 GHz, this device
enables direct RF sampling in the HF, VHF, UHF,
L, S and C-band frequency ranges without the need
for additional frequency conversions stages.\"
Boggling, but worthless, unless you have GHz bandwidth requirements
in addition to GHz carrier requirements. Aperture time being small
also gives you GHz noise capability... not sure it\'s worth examining all
the bits in that firehose of a bit stream.
So, how much data does a channel-plate multiplier and streak camera output,
per second? More, or less?
Next-gen wireless networks will have frequency hopping, radical
constellation coding, synthetic antenna aiming, all sorts of nasty
stuff. It makes sense to digitize the antenna signal and do all the
fancy stuff digitally.
The market will be enormous. Envision hundreds of millions of little
6G boxes on telephone poles all over the world.
--
If a man will begin with certainties, he shall end with doubts,
but if he will be content to begin with doubts he shall end in certainties.
Francis Bacon